کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10633605 | 993046 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mechanochemical synthesis of nanocrystalline carbonate-substituted hydroxyapatite
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Carbonate-substituted hydroxyapatite has been produced by solid-state reactions using a mechanochemical synthesis method. Ammonium phosphate monobasic and calcium carbonate were used as raw materials. Mixtures of the initial powders were prepared using a Ca/P molar ratio similar to that of non-substituted hydroxyapatite, Ca10(PO4)6(OH)2. Dry milling of the powders was performed by using a ball to powder weight ratio equals 20:1. The obtained product was characterized by means of infrared spectroscopy, transmission electron microscopy and X-ray diffraction. Under the employed synthesis conditions hydroxyapatite is obtained after 2Â h of milling. The crystallinity and the amount of the hydroxyapatite increase as milling time does. After milling for 6Â h, nanosized apatite which has a possible composition Ca9+y(CO3)(PO4)5(OH)1+2y is obtained.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 27, Issue 7, April 2005, Pages 1281-1285
Journal: Optical Materials - Volume 27, Issue 7, April 2005, Pages 1281-1285
نویسندگان
J. Coreño A., O. Coreño A., J.J. Cruz R., C. RodrÃguez C.,